Addition and Subtraction - Adding four digit numbers (no exchange) - Presentation

In a set of engaging and interactive teaching slides for a mathematics lesson, students are introduced to the concept of adding two four-digit numbers without the need for exchanging (or carrying over). The lesson encourages the use of place value counters to help visualise and understand the addition process. Students are prompted to create examples of four-digit numbers using these counters and then challenged to add them together, ensuring that the place value columns for thousands, hundreds, tens, and ones are correctly aligned. The activity is designed to solidify their understanding of place value and addition by writing out the calculations and comparing the alignment of different problems.

The lesson progresses with various activities where students continue to use place value counters to add four-digit numbers. They are tasked with identifying similarities and differences between the numbers they are adding, and discussing how these differences affect the outcome of the addition. Additional exercises include filling in missing numbers in partially completed calculations and reasoning challenges that require students to find multiple solutions to a problem, such as adding two four-digit numbers that result in a specific total. The lesson also addresses common errors, such as incorrect alignment of numbers or misinterpretation of place value, and prompts students to correct and learn from these mistakes. The lesson concludes with independent work where students apply what they've learned to solve problems both with and without the aid of place value counters.